If g(2,3) = 85 and g(5,4)= 281, then find g(7,2)
OPTION (d)
g(2,3)= 85= 22 +34
g(5,4)= 281= 52 +44
therefore g(7,2)= 72+24= 65
Find the measure of ∠B.
If sin A = 45 and cos B = - 1213, where A and b lie in first
and third quadrant respectively, then cos(A + B) =